TW541368B - Method for producing jet-type crimped yarn for braided stripe cloth - Google Patents

Abstract

A method for producing a jet-type crimped yarn for braided stripe cloth mainly comprises: controlling the feed rate and the feed time of the sheath yarn for a jet-type crimped yarn machine so that the same crimped yarn forms a different fluffiness at a different length region in order for a braided cloth to form different stripe widths and stripe pitches after braiding and dyeing.

Description

541368 V. Description of the Invention (1) [Technical Field] The present invention relates to a method for manufacturing an air-jet-type scouring yarn capable of knitting a striped cloth, especially a method that can be used on the same scissor yarn by changing the feeding rate of the sheath yarn. The different lengths of the method produce different sizes of fluffy yarns. [Previous Technology]

Please refer to FIG. 1, which is a schematic diagram of the processing flow of the air-jet type scouring machine, which mainly introduces the sheath yarn 8 1 and core yarn 8 2 into a sheath yarn shaft 8 3 and core yarn shaft 8 4 respectively. In the air nozzle 85, the sheath yarn 8 1 and the core yarn 8 2 are connected to the nozzle 8 5 to form an association yarn 8 6, and the association yarn 8 6 is drawn by a third shaft 8 7 and is wound by a roll. Take the roller 8 and roll it up. At present, the research and development of the technology for producing rayon yarn is mostly to change the geometry of the nozzle, change the air pressure to generate different speeds of airflow, or adjust the overfeed rate and take-up speed to make the yarns different from each other. The relative amount of slippage changes the degree of bending, tangling, and entanglement of the monofilament to form loops of different sizes, so that the rayon yarn produced by the air-jet raylet machine has different bulkiness.

The associating yarn produced by the manufacturing method derived from the aforementioned technology has only one kind of fluff on the same associating yarn, and the woven fabric made of this associating yarn has only a consistent texture. Appearance, touch, etc. However, the current demand for knitted fabrics is increasingly diversified, and single-looking, tactile knitted fabrics are no longer satisfactory. Therefore, how to develop an association that can make knitted fabrics have different appearances and touches? Yarn has become the main subject of this hair. [Purpose and effect]

Page 4 541368 V. Description of the invention (2) The main purpose of this creation is to solve the above-mentioned problems and provide a method for manufacturing air-laid yarns for knitting striped cloth, which is mainly made by changing the same yarn. The high and low feeding rate of the sheath yarn makes the same association yarn have different sizes of fluffy in different length intervals, so that after weaving and dyeing, weaves are separated by different fluffy and different shades. Fabric, and can form the visual feeling of different stripe width and stripe spacing visually. [Detailed description of the embodiment] Please refer to FIG. 1 to FIG. 7. The structure shown in the figure is the structure of the embodiment selected for the creation. This is for illustration only and is not subject to such structure in patent applications. limit. Please refer to FIG. 1, which is a schematic diagram of the processing flow of the air-jet type scouring machine, which mainly introduces the sheath yarn 8 1 and core yarn 8 2 into a sheath yarn shaft 8 3 and core yarn shaft 8 4 respectively. In the air nozzle 85, the sheath yarn 8 1 and the core yarn 8 2 are connected to the nozzle 8 5 to form an association yarn 8 6, and the association yarn 8 6 is drawn by a third shaft 8 7 and is wound by a roll. Take the roller 8 and roll it up. According to the research of the present inventor, when the feeding rate of the sheath yarn is increased, it means that the rotation speed of the sheath yarn shaft 83 is greater than the rotation speed of the third shaft 87. Therefore, the sheath yarn shaft 83 and the third shaft The tension given by the tow between 7 and 7 was in the state of Soma. According to the schematic diagram of the processing flow of the jet-type coring machine in Fig. 1, it can be seen that the position of the nozzle 85 is located between the sheath shaft 83 and the third shaft 87. Therefore, at this time, the position inside the nozzle 85 The tow is also relaxed. Therefore, when the feeding rate is larger, the

541368 V. Description of the invention (3) The volume will increase, and the amount of relative slip between the individual filaments in the tow will also increase under the action of the air flow in the nozzle; and each of the filaments leaves the nozzle outlet Because of the extra length caused by the increase of the feeding rate, the monofilament will be more easily bent, tangled, and entangled to form a loop, so the associated yarn will have a larger bulk. Please refer to Figure 2. When the sheath sheath yarn feed rate is (a) 12% (b) 20% (c) 25% (d) 30% (e) 35% and (f) 4 5%, The picture of the produced associative yarn can be clearly seen from the second figure. The larger the degree of fluff of the produced associative yarn, the larger the sheath sheath yarn feeding rate, and the larger the degree of fluffy associated I yarn. After weaving and dyeing, the volume of the associated yarn in a unit length will be larger due to the larger fluffiness, which will increase the density of the dye molecules and make the color appear darker; otherwise, the smaller the associated fluffiness, the The lighter the colors appear. Integrating the foregoing research results, the present inventor has finally developed a method for manufacturing an air-jet-type scouring yarn capable of knitting a striped fabric, which is mainly based on changing the sheath sheath yarn of the air-jet-type scouring machine during the process of manufacturing a yarn The high and low feeding rates and feeding time can make different fluffy degrees of different length intervals of the same yarn, and then weaving and dyeing, so that the knitted fabric has a deeper fluffy section. Color, and the less fluffy section produces lighter color, as shown in Figure 3 and Figure 4. It can be known from the foregoing method that the difference in the feeding rate of two different fur yarns on the same fancy yarn can be given at the same time, and it can be made to have two different fluffs on the same yarn. Degree and high sheath yarn

541368 V. Description of the invention (4) The larger the difference between the low feeding rate, the more obvious the difference in the color tone of the deep and light sections of the knitting yarn knitted fabric. According to the foregoing principle, when the high-speed feeding time T 1 of the sheath at a high feeding rate is prolonged, the length of the high fluffy section caused by the high feeding rate is longer on the same yarn. Therefore, after weaving and dyeing, it can be found that the width of the darker section of the rayon fabric is wider; conversely, when the low-speed feeding time T 2 of the sheath at a low feed rate is prolonged, it is on the same rayon Above, the length of the low fluffy section caused by the low feed rate is longer, so after weaving and dyeing, it can be found that the width of the light-colored section of the rayon fabric is wider. Please refer to Figure 5. The high-speed feeding time T 1 of the sheath yarn is (a) 3 seconds (b) 4 seconds (c) 5 seconds (d) 6 seconds (e) 7 seconds. As can be clearly seen from the figure 5, the longer the high-speed feeding time T 1 of the sheath yarn, the wider the width of the darker section of the associated rayon fabric. Please refer to FIG. 6 again. The low-speed feeding time T 2 of the sheath yarn is produced at (a) 3 seconds (b) 4 seconds (c) 5 seconds (d) 6 seconds (e) 7 seconds. The picture of the woven yarn fabric can be clearly seen from Figure 6. The longer the low-speed feeding time T 2 of the sheath yarn, the wider the width of the light-colored section on the woven yarn fabric. .

On the same piece of fabric, the dark section and the light section are separated, which will give a visual sense of stripes. The dark section is the width of the stripe, and the light section is light. Color segments are like stripe spacing. Therefore, giving two different sheath sheath yarn feeding rates to the same yarn will cause different changes in the appearance color and touch of the yarn.

Page 7 541368 V. Description of the invention (5) Therefore, the hues of the stripe width (ie, the dark section) and the stripe pitch (ie, the light section) on the woven yarn fabric can be determined by the sheath yarn. The difference between the high and low feeding rates can be changed to achieve the requirements. By controlling the high-speed feeding time τ 1 and the low-speed feeding time T 2 of the sheath yarn, it is possible to change the stripe width and stripe pitch on the woven yarn fabric. Size to break the desired. Furthermore, according to the inventor's research, the changes in the high-speed feeding time T 1 and the low-speed feeding time T 2 of the sheath yarn can be deduced from the stripe width and the stripe pitch appearing on the rayon fabric by the following formula know,

Dxix (l + C2) Tlx S

T2xS jP II ----

Dx / x (I + C2) L2 two T2% S where S: total production length of associated yarn (c m / s) T 1: high-speed feeding time Τ 2: low-speed feeding time

L 1: The length of the associated yarn produced at the high-speed feeding time T 1 L 2: The length of the associated yarn produced at the low-speed feeding time T 2 D: Weft density (root / cm) 1: Fabric (Cm) C 2: Weft take-up rate (%) W: Stripe width (cm)

Page 8 541368 V. Description of the invention (6) P: Stripe pitch (cm) Please refer to Figure 7, which is based on high-speed feeding time T 1 = 6 seconds, low-speed feeding time T 2 = 3 seconds, and high feeding rate Under the conditions of 40% and low feed rate of 12%, the schematic diagram of the stripe width and the stripe pitch of the woven yarn fabric produced can be clearly seen in Figure 7 from the high and low speed feeding time to the stripe width. The effect of the change in the distance from the stripe.

According to the foregoing formula, when the required stripe width and stripe pitch can be calculated in advance, how much high-speed feeding time T 1 and how low-speed feeding time T 2 need to cooperate with each other, so that it can be controlled by the program. Controller or computer to control the speed of the sheath sheath shaft 8 3, so that the same yarn can be produced with two different sizes of fluff in different length intervals, so that the desired stripes can be produced after weaving and dyeing Associated yarn fabric with width and stripe pitch. In summary, the present invention changes the size of the sheath yarn of the same associated yarn with low and high feeding rate, so that the same associated yarn has different sizes in different length intervals. The degree of fluffiness is that after weaving and dyeing, weaving fabrics with different fluffy degrees and different shades of lightness are produced, and the visual feeling of different stripe width and stripe spacing can be formed visually. Xin The disclosure of the embodiments described above is used to explain the creation, not to limit the creation. Therefore, any change in the value or replacement of equivalent components should still belong to the scope of the creation. From the above detailed description, those skilled in the art can understand that this creation can indeed achieve the aforementioned purpose, and it has indeed complied with the provisions of the Patent Law, and filed a patent application.

Page 541368 The diagram is briefly explained. The first diagram is the schematic diagram of the processing flow of the air-jet association machine. The second diagram is the picture of the association yarn produced with different fluff at different sheath sheath yarn feeding rates. Schematic diagram of woven fabrics with two different high and low feed rates for sheath yarns. Figure 4 is a picture of woven fabrics with two different high and low feed rates for sheath yarns.

Figure 5 is a picture of the woven yarn fabric made at different high-speed feeding times. Picture 6 is a picture of the woven yarn fabric made at different low-speed feed times. Figure 7 is different high- and low-speed feed rates and different feeding times. Schematic diagram of the stripe width and the stripe pitch of the woven fabrics [Sheet number 8] Sheath yarn 8 1 Sheath shaft 8 3 Nozzle 8 5 Third shaft 8 7 Core heart yarn 8 4 Associated yarn 8 6 Winding roller 8 8

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Claims (1)

541368 VI. Scope of patent application1. A method for manufacturing air-laid yarns for knitting striped cloth, which is used to change the high and low feed of the sheath sheath yarn of air-jet yarns during the process of manufacturing a yarn. The rate and its feeding time make different fluffy degrees of different length intervals of the same yarn, and then weaving and dyeing, so that the knitted fabric has a deeper color in the larger fluffy section, and the fluffy degree is relatively Small sections produce lighter shades. 2 · According to the method for manufacturing the air-jet type scouring yarn of the woven stripe cloth according to item 1 of the scope of the patent application, wherein the feeding rate of the sheath yarn changes the rotation speed of the sheath shaft of the air-jet type scouring machine, In order to change the tension of the tow given between the sheath sheath axis and the third axis. 3. The manufacturing method of air-jet type scouring yarn for woven stripe cloth according to item 1 of the scope of the patent application, wherein the feeding time of the sheath yarn changes, which refers to controlling the feeding rate of the sheath-sheath axis of the air-jet type scouring machine. Time to change 0 Page 11